15485 - Add support for SENDER header

Status: VERIFIED DUPLICATE of bug 17319

(MailNews Core :: Composition, enhancement, P3)

Description

[Ben Bucksch (:BenB)]

RFC 822 states, that FROM is the adress of the author(s). For the case where
sender != author, it should be changeable on a per-message basis and a SENDER
header should be added containing the adress of our user (the sender).

See thread "Correct From, Sender and Reply-To handling" on n.p.m.mail-news.

Comment 1

[Phil Peterson]

I think this is pretty vague. When is it true that sender != author, and how
would we know that? And how do we know what to put in the Sender header?

Note that 4.x does use the Sender header for Unix versions. See
http://lxr.mozilla.org/classic/source/network/protocol/smtp/mksmtp.c#839

Comment 2

[Claus Färber]

The idea is to allow the user to enter any name and email address in the From field (as well as multiple addresses) and to add the Sender header when the address matches none of the addresses that are available through identities (or the user added multiple From addresses.) Then the user could select one of his identities for the Sender.

(No, I don't think there is much potential for this feature to be abused: New identities are easily added and the user would see that Mozilla adds a Sender header when s/he adds a different From.)

Comment 3

[pmock]

changing QA assigned to pmock

Comment 4

[Claus Färber]

(This bug describes the problem better.)

*** This bug has been marked as a duplicate of 17319 ***

Comment 5

[pmock]

Verified as duplicate of bug 17319